aiie/apple/noslotclock.h
2018-02-17 09:05:52 -05:00

38 lines
618 B
C++

#ifndef __NSCLOCK_H
#define __NSCLOCK_H
#include <stdint.h>
#include <stdio.h>
class AppleMMU;
class NoSlotClock {
public:
NoSlotClock(AppleMMU *mmu);
virtual ~NoSlotClock();
bool read(uint8_t s, uint8_t *data);
void write(uint8_t s);
protected:
bool doRead(uint8_t *d);
void doWrite(uint8_t address);
void writeNibble(uint8_t n);
virtual void populateClockRegister() = 0;
virtual void updateClockFromRegister() = 0;
protected:
AppleMMU *mmu;
uint64_t clockReg;
uint64_t compareReg;
uint8_t clockRegPtr;
uint8_t compareRegPtr;
bool regEnabled;
bool writeEnabled;
};
#endif